[palisade]

Is that Russian ship still parked nearby? I recall reading about that a while back. Maybe that's where the signal is coming from. https://www.cnn.com/2018/01/22/politics/russia-spy-ship-us-c...

[QuarterReptile]

I admit that I don't have much expertise on the matter, having only ever operated a GSM cell site simulator (never LTE), but the max range I remember (in ideal conditions) is something like 35 miles.

[bigiain]

35km - which is a TDMA timing issue, not a radio range one - that damned pesky speed of light problem...

https://en.wikipedia.org/wiki/Timing_advance

(Note there's and "extended range" feature, where you can halve the cell site's capacity by waiting two timeslots in the TDMA schedule instead of one - which lets you go as far as 120km...)